> For the complete documentation index, see [llms.txt](https://book.bsdcn.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://book.bsdcn.org/man/man4/ams.4.md).

# ams.4

`ams` — ADB 鼠标驱动

## 名称

`ams`

## 概要

`要将此驱动编译进内核，请将以下行放入你的内核配置文件：`

> device adb

## 描述

`ams` 驱动为连接到 Apple Desktop Bus（ADB）的鼠标和触控板提供支持，实现了基本和扩展 ADB 鼠标协议。

## 硬件

`ams` 驱动支持的设备包括：

* Apple Mouse
* ADB Extended Mouse
* MacAlly 双键鼠标
* Apple iBook 触控板
* Apple PowerBook 触控板

## SYSCTL 变量

**`dev.ams.%d.tapping`** 在 ADB 触控板上，将此 sysctl 设置为 1 会使触控板上的点按被解释为按钮单击。

## 参见

Apple Tech Note HW01: ADB - The Untold Story: Space Aliens Ate My Mouse: `http://developer.apple.com/legacy/mac/library/technotes/hw/hw_01.html`

[adb(4)](/man/man4/adb.4.md), [cuda(4)](/man/man4/cuda.4.md), [pmu(4)](/man/man4/pmu.4.md)

## 历史

`ams` 设备驱动出现于 FreeBSD 8.0。

## 作者

`ams` 驱动由 Nathan Whitehorn <nwhitehorn@FreeBSD.org> 编写。


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